Bob-sled runner.



PATENTED JAN. 17, 1905.

J. H. ANDERSON.

BOB SLED RUNNER.

APPLICATION 211.21) DBO. 2a. 1903.

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JOHN H. ANDERSON, OF LITTLEFALLS, MINNESOTA.

BOB-SLED RUNNER.

SPECIFICATION forming part of Letters Patent NO. 780,149, dated January17, 1905.

Application filed December 23, 1903. Serial No. 186,338.

To all whom it may concern.-

Be it known that 1, JOHN H. ANDERSON, a citizen of the United States ofAmerica, and a resident of Littlefalls, in the county of Morrison andState of Minnesota, have invented certain new and useful Improvements inBob- Sled Runners, of which the following is a specification.

My invention relates to improvements in bob-sled runners, and has forits object simplicity of construction and effectiveness in use.

A further object is a bob-sled runner which is constructed out of asingle straight piece of wood, said runner having a suitable upcurvedframe at the forward end thereof, which forms a continuation of the shoeon its lower face.

In the accompanying drawings, forming part of this specification, Figurel is a side view of my improved bob-sled runner. Fig. 2 is a plan'viewof Fig. 1. Fig. 3. is a sectional view taken on the line X X of Fig. 1.Fig. 4 is a sectional view taken on the line Y Y, and Fig. 5 is asectional view of the brace at the forward end of the runner.

In the drawings, let A represent the runner, which is preferablyconstructed out of a single straight piece of wood. or other suitablematerial. This runner has the lower face of its forward and rear endscurved up, respectively, at 2 and 3. The purpose of these curved ends isto make the runner slide forward or backward easily. A shoe 4,preferably made of metal on its lower face, and the frame B, which formsan extension of the shoe on its forward end, are fastened to the runnerby means of the bolts 6. The frame B is curved above the face 2 and bentto form an eye 7 for connecting with the reach or shaft. (Not shown.) Arivet 8 is preferably fastened through the lower and upper sides 9 and10 of the frame B, and a brace 11 for strengthening the frame isfastened between its sides by means of the bolt 12. This brace is formedwith clips 13, which straddle the sides of the frame, and is cut away at14: so as to engage the upper side of the runner. The bolt 12 passesthrough the hole 15 in the brace. Theobject of the construction abovedescribed is to provide means whereby the runner may be constructed outof a single piece of wood straight with its grain, as distinguished froma runner which is bent up at its front end.

By making the runner out of a piece of wood straight with its grain, asshown, it is stronger, more durable, and less expensive to constructthan runners having bent ends. The beam 16, of any suitableconstruction, may be fastened to the runner by any suitable means. Asshown, a block 17, which is recessed at 18, is fastened to the upperface of the runner by the plates 19 and bolts 20. A frame 21, of iron orother suitable material, is fastened by the clips 22 and bolts 23 to therunner and extends above the beam, which rests between its lower faceand the block 17. A pair of vertical pins 2 1, which pass through theframe 21, block 17, and into the runner, assist in holding the block inposition. The block 17 presents a broad surface for the beam to restupon and reduces wear of the parts between the beam and runner. Theblock and means by which the beam is fastened t0 the runner produces astrong lateral and longitudinal connection between the runner and beam.The construction of the block also relieves the strain from the pins.

Having described my invention, What 1 claim as new, and desire toprotect by Letters Patent, is

1. A device of the class set forth, consisting of a runner made out of asingle piece of wood, straight with its grain throughout its length andhaving a straight upper face and an upcurved lower face .on its forward.end, a strip of metal projecting above said face on its forward end andbent back to meet said upper face, means for bracing the upper side ofsaid strip against said runner, and means for fastening said strip tosaid runner.

2. A device of the class set forth, consist-' ing of a runner made outof a single piece of material having its grain straight throughout itslength and formed with a straight upper face and an upcurved lower faceon its forward and rear ends, a shoe formed by a strip of metal curvedup near its forward end and bent back to meet said upper face and forman eye, a brace between the upper side of the shoe and the forward endof said runner, and means for fastening said shoe to said runner.

4. A device of the class set forth, consisting of a runner having astraight upper face and an upcurved lower face on its forward and rearends, a shoe fastened to the lower face of said runner, a skeleton framehaving its lower side fastened to the curved face onits forward end andprojecting above said runner, the upper side of said frame beingfastened to the straight upper face of the runner, and a brace fastenedbetween the sides of said frame and engaging the forward end of therunner.

5. A device of the class set forth, consisting of a runner formed by asingle, straight piece of material having its upper face straight andits lower face curved up at its forward end, a shoe fastened to thelower face of said runner,a skeleton frame projecting above the forwardend of the runner and having its lower side fastened to said curved faceand its upper side fastened to the upper face of said runner, and abrace between the sides of said frame and engaging the forward end ofthe runner.

6. A device of the class set forth, consisting of a runner formed by asingle, straight piece of material,having its upper face straight andthe lower face of its forward end curved up, a shoe fastened to thelower face of said runner, a skeleton frame having itslower sidefastened to said curved face and its upper side fastened to the upperface of said runner, a loop formed on the upwardly-projecting end ofsaid frame, a bracket between the sides of said frame and engaging theforward end of said runner, a beam, and means for engaging said beamwith said runner.

7. A device of the class set forth, consisting of a runner, a transversebeam above said runner, a block having a groove in which the top of therunner fits and of greater length than the width of said beam and ofgreater width than the width of said runner, a frame above said beamfastened to said runner, vertical pins passing along the sides of saidbeam through said frame and block and into said runner, platesconforming to the sides of said block and .runner, and means forfastening said plates to said block and runner.

8. A device of the class set forth, consisting of a runner A, atransverse beam 16 above said runner, a block 17, between said beam andrunner, having a groove to receive the upper surface of said runner andof dimensions greater in length than the width of said beam and greaterin width than the width of said runner, a frame 21 passing over saidbeam and having its ends fastened to the upper surface of said runner, apair of vertical pins which pass through said frame alon the sides ofsaid beam, through said block and into said runner, and plates forfastening said block to said runner.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN H. ANDERSON. Witnesses:

T. G. GORDON, W. W. HIGGINS.

